Improvement in wash-boilers



. UNITED f;

PATENT rrrcnl L. DAVIS NOBLE, OF CERRO GORDO, ILLINOIS.

IMPRQVEMENT IN WASH-Bodens.

Specification forming part of Letters Patent No. 31119,783, dated April14, 1874 application filed February 12, 1871.

To all lwhom it may concern: c

Beit known that I, L. D. NOBLE, of Cerro Gordo, in the countyrof Prattand State of Illinois, have invented a certain Improvements inWashoilers, of which the following is a specication:

Figure 1 is a plan view of my improved boilers, the cover being removedfor the purpose of showing the diaphragm, the removable valve, the tubesor ducts through which the water rises to the surface of the articleswhich are being cleaned, and the aperture through which the water may beemptied from the space between the diaphragm and the bottom of theboiler. Fig. 2 is a sectional elevation, showing the construction andarrangement of the parts 5 and Fig. 3 is a transverse vertical section.

Corresponding letters refer to corresponding parts in the severalfigures.

This invention relates to what is termed washing-boilers; 7 and itconsists in the oonstruction and in the combination of certain of theparts of which .it is composed, as will be more fully set forthhereinafter.

In constructing boilers of this type, I make the upper portion A 0f thevessel of any required size, and of a shape that will adapt it vto thestove or furnace in or upon which it is to be used, the material ofwhich it is made being tin, zinc, galvanized iron, or any othervsuitable material. The lower portion of this vessel A1 A1 I propose tomake of sheet copper or of brass, the bottom being of the same material.The copper upon the side is to eX- tend up to about the front,where thediaphragm B is located, and is intended to serve as a means ofprotecting that portion from injury by intense heat, when it isallowedto descend into the stove or furnace. The copper or brass portion may besoldered or brazed to the upper portion A in such a manner that it maybe removed when worn out, and a new bottom be substituted. A cover, A2,is provided, which covers the boiler when in use, and prevents theescape of steam or vapor into the room. For the purpose of providing awater-reservoir in the bottom or lower portion of the boiler, adiaphragm, B, is extended across the Isameat or about at the point wherethe two sections of4 the .boiler are united. This diaphragm is solderedto the sides of the boiler, and is thus fixed in its position and madewater-tight, except that it has an aperture near its center, whichiscovered with a valve, and through which water passes to the chamberbelow it. Upon the edges of the aperture in thevdiaphragm pieces ofmetal are soldered or riveted, by being so formed with overhangingportions as to receive and hold in position a plate, C, which is in theform shown in Fig. l, and has its edges made double in thickness, andbent over, as shown in Fig 3, in order that they may hook over theprojection upon the cleats formed upon the diaphragm B, and thus securesaid plate in position. The plate above referred to has an aperture inits center, which is closed by vertically rising and swinging valves Dand D', they being constructed as shown in Fig. 2, and suspended uponyokes E E, attached to the plate C. The arrangement of these valves issuch that they may rise and fall vertically, or that their inner endsmay swing from the point of suspension, and rest upon a support or stopprovided for them, which projects down from the lower surface ot' theplate G, as shown in Fig. 2. As a conse-4 quence of this arrangement ofthe valves they are free to form graduated openings for the water topass down from the upper portion of the boiler to the chamber below thediaphragm, or to4 fall at both of their ends, and thus leave a fullopening for theypassage of the water, and they are also free to rise inthe same manner, and thus control the pressure of steam in the chamberbelow, and cause all the water which it may contain to pass up throughthe ducts at the ends of the boiler, or a portion of it may pass thevalves at one of their ends, and go up through the plate O, and thusregulate the pressure in the chamber without cutting off the supply ofwater thereto. To prevent any portion ofthe articles that are beingboiled or cleaned from passing down and choking up the passage to thevalves, a plate, F,`is placed above the opening in the plate C, it beingheld at such a distance therefrom as to leave a free passage for thedescending water between the two. the plate O is of the tapering formshown, and to the fact that it is provided with the bent edges, it andthe valves which it carries may Owing to the fact that at any time -beeasily removed and replaced, and at the same time the boiler may beconverted into an ordinary boiler for the boiling of clothes or thecooking of food. For conducting the Water from the chamber in the lowerportion ofthe vessel to the upper surface of the clothes While beingcleaned, tubes or ducts H H, of the form shown, are placed in each endof the boiler above the fixed diaphragm B, apertures being formed insaid diaphragm for the passage of Water to the tubes or ducts, the upperends of which are enlarged and made to project for some distance towardthe center of the vessel, in order that the `Water, as it rises in themand is discharged therefrom through the apertures G Gr in the upper and,may be projected to the center of the mass of material which the boilermay contain, and thus be in the proper position to pass down to andthrough the valves, preparatory to being again raised through the ducts.

In order that the Water may be readily removed from the chamber When theboiler is not in use, an aperture is formed in the upper surface of oneof the ducts H, which aperture is closed with a screw-cap, that may atany time be unscrewed, and the Water poured out through the duct.

Having thus described my improved boiler, What I claim, and desire tosecure by Letters Patent, is-

1. The combinatiomwith a wash-boiler, ofthe parts A1 Al, fixedvdiaphragm B, tapering anged and removable sliding plate (l, and thevalves D D, the parts being constructed and arranged substantially asand for the purpose set forth.

2. In combination with the flaring openings in the plate C, the haringvalves D D, hinged at one end on the yoke E and supported at the otherand free end, as shown, so that the valves having both a swinging and avertical action will close gradually as the pressure of the steamincreases, substantially as set forth. Y In testimony whereof I havesigned my name to this specification in the presence of two subscribingWitnesses.

L. DAVIS NOBLE.

XVitnesses:

SOLOMON WELTY, H. M. GREEN.

